Antifreezing device



J. F. STRUB'LE ANTIFREEZING' DEVICE Filed Feb. 28, 1924 gwuvmtoz 6! 6 Mai/raw awe-amt;

Patented May 3, 1927 UNITE aAMEs F. s'rmiiatn, or HUTcHINso'n, Kansas? immanent; DEVICE. I

Application filed Fetal-y 28,1924. Serial No. 635.704.

1 This invention is an improvement in anti freezing devices, anduwith respect to its more specific features, relates to devices appl cable and it is subjected to the blast of the cooling fan, driving rearwardly, and downwardly,

directly over the pipe. In addition, the wa ter holds less of heat when passing through this part of the system than in any other.

An object of the invention is to remove this source of trouble, and a feature of the inventionis the provision of mechanism forraising the temperature of the cooling liquid in this part of the system above the freezing point, when climatic conditions are such as to make freezing probable.

, With this and other objects in view, the invention consists in the construction and novel combination of parts fully described hereinafter, illustrated in the accompanying drawings, and pointed out in the appended claims; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit of the invention. v i I In the drawings forming a part hereof; Figure 1 is a side elevation of a part of device, withparts broken away; s

Figure 2 is a'plan view of a heater section; Figure 3 is a similar view of an alternate arrangement. I p

The present embodiment of the invention is shown in connection with the water cira motor car provided-with the improved culation system of a motor vehicle 1, the

system including the radiator 2, at the front of the hood 3, and connected to the water jacket of the engine 4:, by the usual circulation pipe, the return pipe beingindicated at 5. Behind the radiator, and between it and the engine, is arranged the fan 6, for cooling the radiator. The pipe 5 is below and "behind the fan, and, issubjected toitheaction of the blast driven thereby;- i

Inoroler to-prevent freezingofthispipe,

at which point freezing is usually first to appear, I (provide means for heating the pipe, from the point where it leaves the radiator to asuflicient distance to. shield it fromtheblast of the fan. This heating means maybe of any ,preferred. form and character, and supplied withheat in any desired manner. l

In the present instance I use a heater in the form of asectional casing, composed of similar sections 7 each a half cylinder, and

nuts 10. V

With this arrangement, the heater may easily be attached or removed, and preferably the sections of the casing are lined for instance asbestos. The ends of the sections are formed to fit the pipe closely, as indicated at,11 and 12, respectively, and

provided atone side edge with admarginal flange 8. At the opposite side edge the 'sections are hinged together, as indicated at 9, and the flanges 8 are connected in any suitable manner, as for instanceby bolts and avith some non-heat conducting'material, as

one of the sections is provided with inlet I and outlet nipples 13 and 14, respectively,

the former for connection with a pipe 15, a

which leads from the exhaust pipe manifold'16. i i r v a The heater casing may be of any suitable materlah'as for instance sheet metal of suit able weight, stamped or pressed to shape,

or it may be in the form of a casting, and

its shape will depend on the shape and location of the return pipe 5. If for instance the pipe is bent or curved, the'heater casing may be similarly shaped. y

The improved device not only prevents freezing when the engine is running, but

afiords a measure of protection for the pipe when the car is not in use. It provides a non-heat conducting jacketfor the pipe at I all times,and will retainheat for a considerable time after the engine ceases to run;

The exhaust gases flow from the manifold through the heater casing, and are discharged by the nipple 14, which extends through the dust pan 18, and delivers beneath the car. A valve 17 is provided in the pipe 15, by means of which the flow through the casing, and as a consequence the amount of heat obtained, may be nicely regulated. Vhen there is no probability of freezing, this valve maybe closed, thus shutting off the flow of gases from the manifold. The nipple 14: should be of suh'icient capacity to give free vent to the exhaust gases pass ingthrough the casing when the, valve-is fully open. The device as a whole is extremely simple,

and it may be manufactured at a low cost.-

It is easily applied'and removed, and requires no attention when once in place.

An alternate construction of heater casing is shown in Fig. 3, wherein the sections of the casing, one of which is indicated at 19, are provided with marginal flanges 20 at both side edges. The flanges have openings,

which register when the sections are in place,

and the flanges are connected by bolts and nuts 21. The bolts are passed through the openings and are engaged by the nuts, by

The construction is otherwise internal combustionengine, comprising a casingof a cross section and length to enclose and jacket the full length of the return pipe from the radiator to the engine, said casing composed ofseparabl'e sections, and

means to secure the sections together about the pipe to be wholly supported thereby,

said casing having an inlet andanoutlet pipe for connection with the exhaust manifold of the engine and the atmosphere respectively, and a valve in connection with one of the pipes. z I

' In testimony whereof I affix my signature.

JAMES F. STRUBLE. 

